Calpico can be found at most Asian supermarkets. There are different flavors, such as lychee, strawberry, peach, and mango. Personally, my favorite is the lychee flavor.

Calpis (カルピス Karupisu) is a Japanese uncarbonated soft drink, manufactured by Calpis Co., Ltd. (カルピス株式会社 Karupisu Kabushiki-gaisha), headquartered in Shibuya, Tokyo. In some English speaking countries, such as the United States, the name Calpis is changed to Calpico, believed to be so because Calpis sounds similar to cow piss in English.  The beverage has a light, somewhat milky, and slightly acidic flavor, similar to plain or vanilla-flavored yogurt or Yakult. Its ingredients include water, nonfat dry milk and lactic acid, and is produced by lactic acid fermentation. It was first marketed on July 7, 1919. It quickly became popular in pre-war Japan as its concentrated form meant it kept well without refrigeration. (Wikipedia)